Biobest steps up presence in Portugal with acquisition of Agronologica, changes name to Biobest Portugal

Agronologica Unip. Lda. and Biobest today jointly announced the acquisition of Agronologica by Biobest. Agronologica Unip. Lda. was founded by José Vanzeler de Melo in 2016. The company has served growers in Portugal to successfully roll out biocontrol programs, acting as a distributor of Biobest and…

Greenlife Industry Australia:

August Pest of the Month: Fusarium species in production nurseries

Fusarium species provide a major challenge to successful nursery production, particularly the special host adapted forms of Fusarium oxysporum, which cause vascular wilts. These are very strong pathogens capable of causing devastating losses. Plants systemically infected with Fusarium wilt pathogens…

Agdia Commercializes ImmunoStrip for Detection of Nemesia ring necrosis virus

Agdia, Inc. (Elkhart, IN) is happy to announce the introduction of a rapid, user-friendly diagnostic product on their ImmunoStrip® platform for the detection of the Nemesia ring necrosis virus. Nemesia ring necrosis virus (NV) is a member of the Tymovirus genus. This virus has a relatively narrow confirmed…

UF/IFAS:

All Florida pesticide exams now available online

In Florida, pesticide licensing exams help ensure the state’s approximately 70,000 pesticide applicators are properly certified to follow state regulations and best practices for mitigating the impact of chemicals on the environment. After the launch of several online pesticide exams earlier this year,…

Understanding nematodes could unlock the potential of your farm

A key to unlocking the potential of a crop is buried in the upper layers of the soil. Living within soil water pockets are worm-like micro-organisms called nematodes (phylum Nematoda). These tiny creatures amass large populations, and in agriculture, they can help or hinder. Some nematodes are…

Biohacking helps protect crops from fungal attacks

Harmful fungi cause enormous agricultural losses. Conventional techniques for combating them involve the use of poisonous fungicides. Researchers at Karlsruhe Institute of Technology (KIT), working with partners from Germany, France, and Switzerland on the DialogProTec project, have developed…

Potted plants lag somewhat behind

95 percent of the Dutch horticultural area uses biological pest control

In 2020, 95 percent of the greenhouse crops were biologically controlled with parasitic wasps or predatory mites. In 2016, this was 92 percent, and in 2012 78 percent. For…

e-Gro

Encountering eriophyid mites on coneflower and other ornamentals

What are eriophyid mites? Eriophyid mites (family Eriophyidae) affect a wide variety of plants and are known as gall, blister, bud, or rust mites based on the abnormalities they cause in their host plants. Galls are abnormal growths on a plant that are often caused by plant hormones responding to…

Ventigra insecticide controls piercing-sucking insects

Ventigra insecticide controls piercing-sucking insects using mode of action subgroup 9D. The rapid onset of action stops insect feeding and damage, and translaminar movement delivers optimal protection against actively feeding pests. Pest pressure is real for today’s growers. From commercial greenhouse and…

Dutch grower Ron van der Voort of ROVO plant on the power fogger

Fogging the greenhouse against Sciara

If you are bothered by unwanted bugs in the greenhouse, spraying is the obvious solution. But sometimes, this just doesn't work well enough, and you have to look for another method. Dutch grower, Ron van der Voort of ROVO plant, knows all about it - he had problems with Sciara in the greenhouse, and…

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US Customs intercept first in port flower pest at Austin-Bergstrom airport

US Customs and Border Protection agriculture specialists working at the Austin-Bergstrom International Airport discovered a variety of prohibited pests and plant diseases, including one pest that has never been encountered at this port of entry.  The discovery occurred when CBP agriculture specialists inspected…

New product release: Protection Plus

The truth about killing insects - the right way the first time

Environmental Plant Management Inc (EPM) announced the release of their new pesticide, Protection Plus, at Cultivate’22 in Columbus, Ohio, July 16-19, 2022. The product will be displayed in the New Product Zone and in the exhibit hall in booth 1711. “Growers don’t realize the conundrum created by using…

BioSafe Systems:

"Growers can control caterpillars with scouting and Btk Bioinsecticide-BT NOW"

Fall is generally the heaviest season for caterpillar pressure. But these leaf-eating pests can appear and proliferate throughout the growing season outside the greenhouse, especially during the warmer months. Growers can combat caterpillars through an integrated pest management approach that includes…

Flower shape and size impact bees’ chances of catching gut parasites

Common eastern bumblebees (Bombus impatiens) are more likely to catch a diarrhea-inducing gut parasite from purple coneflowers, black-eyed Susans, and other similarly shaped flora than other flowers, researchers report in the July Ecology. Because parasites and diseases contribute to bee decline, the…

Biobest Bio-Boxes – what benefits do they offer?

Growers have two options for introducing beneficials supplied in bulk or as loose material, directly onto the leaf or via our Biobest Bio-Boxes, which provide an efficient…

How to choose best predatory mite for thrips and spider mite in ornamentals

Now that summer has arrived, thrips and spider mite pressure is likely to increase. The climate inside the greenhouse is also changing, and - according to Biobest advisor Koen Merkus - ornamental growers should choose the predatory mite that best suits these conditions. For example, Amblyseius swirskii…

Kerry Sheridan / TNS

The giant African land snail has been spotted again in Florida

The giant African land snail, which can grow to the size of a fist and carry a parasite that causes meningitis, was declared eradicated from South Florida last year after a decadelong battle of people versus pests. The dreaded snails were spotted again in June by a gardener in Pasco County, north of…

Greenlife Industry Australia

July pest of the month: Caterpillars

Caterpillars are the larvae of moths and butterflies and are often easily recognized by their long fleshy body and paired prolegs down their abdomen. They are common problems that are sometimes difficult to manage because they hide under leaves, within rolled leaves, inside stems, or in leaf mines.…

Biological fungicide protects against soil-borne diseases such as Pythium

If your young plants are not performing well, take a good look at the roots, advises Biobest’s Koen Merkus - as this is where Pythium reveals itself first. “Known symptoms of this widespread fungal disease include brownish-black discolouration, limited numbers of lateral roots and slimy, dead root tips,”…

Beneficial insects are exposed to insecticides through honeydew

Insects can be exposed to insecticides through various routes, including a plant’s pollen and nectar. For the first time ever, PhD researcher Miguel Calvo Agudo found that honeydew is also a route of exposure to insecticides, which can be harmful to beneficial insects. For these findings, Calvo Agudo…

Photo by Josh Amrhein

Cucurbit powdery mildew control in 2022

Cucurbit powdery mildew (CPM), caused by Podosphaera xanthii, is one the most important diseases of cucurbit crops throughout the world. The pathogen is an obligate parasite, just like cucurbit downy mildew, meaning it needs a living host in order to survive. In northern regions that have a killing frost…

Spray boom full of traps to catch pests

The rubber strings chase the insects from the plants causing them to fly straight into the sticky catch strips. That is the simple explanation for a video that shows Horiver 40x25 cm sticky traps attached to an automatic spray boom to catch thrips and whitefly. The Dutch company, Vos Capelle, shared the…

"Master's thesis on fungal structures in agricultural systems reads like a novel"

Four WUR students were awarded prizes last Friday during the award ceremony of the Thesis Award 2021 of the University Fund Wageningen. Corentin Bisot won in the field of environmental sciences with his thesis on the growth behavior of soil fungi and was honored as the overall winner. According to the…

Onfloriculture

Tropical Thrips species intercepted on plant material in Ontario

Increases in global trade, along with decreased use of harsher broad-spectrum pesticides, make it easier for insect species to move around the world. Because of this, it is becoming more common to find usual pests coming in on plant material. Identifications were confirmed by taxonomists at the Canadian…

Farmers now use US tracking tech, expecting difficult locust season

Paul Allen’s Institute aids South Africa in combating locust swarms

South Africa is bracing itself for a repeat of last season’s locust swarms, the worst in decades, and is banking on a tracking technology backed by the institute of Microsoft…

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Protected agriculture standard: important information about dye test audits for growers

The National Protected Agriculture Standard is administered by CropLife Canada and comes into effect on January 1, 2024. The goal is to keep plant protection products where they are applied. In order to purchase pesticides going forward, your farm will need to be certified under the program as of January…

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US: APHIS seeks public comment on proposed changes for revising pest regulation lists

The US Department of Agriculture, Animal and Plant Health Inspection Service (APHIS) plans to revise the regulations governing domestic quarantines for plant pests by moving lists of quarantined areas and regulated articles to the APHIS website. This amendment will allow us to use a notice-based,…

Terrazza MC launches Geotex Pro

"Cleaning machine reduces need for expensive algae control chemicals"

Terrazza MC® exhibits at Greentech this week and introduces the Geotex Pro for the first time in Amsterdam. This ecological cleaning and weed removal machine was developed for the nursery sectors. "The Geotex PRO® assists with the maintenance and cleaning of geotextile surfaces within the greenhouse area. Geotex…

© Tomasz Klejdysz | Dreamstime.com

SBM Life Science France awarded three Jard'innov Trophies

The Jard'Innov Trophies recognize product innovations based on practicality, efficiency, ergonomics, safety, design, and environmental protection. SBM Life Science France has received three awards this year, judged by buyers from retail chains, including garden centers, LISA, GSA, and GSB. SBM Life…

Spider lilies can be used to warn of tospovirus infections

Project Update Tospoviruses, a group of thrips-transmitted viruses, have the potential to greatly harm plant production in Australia. A levy-funded project is currently exploring ways that growers could identify infestation from these pathogens early, enhancing biosecurity. The project has found that spider…

ZeroTol 2.0 helps reduce resistance in IPM programs

ZeroTol 2.0 is a broad-spectrum contact oxidizer of fungal, bacterial, and algal spores and cells. Eric Smith, Horticultural Sales Manager for BioSafe Systems, calls it a “plant sanitizer.” ZeroTol 2.0 kills more than 20 differ­ent plant pathogens, including powdery mildew, Botrytis, Xanthomonas, and…

YK1500 / DepositPhotos

Japanese knotweed is increasingly causing problems in the Netherlands

The number of reports of Japanese knotweed increased considerably in recent years, according to an analysis by ANP/LocalFocus of figures from Waarneming.nl. The plant's rapid growth and easy spread are major problems in the Netherlands. The plant is very difficult to combat and can cause a lot of damage…

© Lightpoet | Dreamstime.com

Tatyana Zhashkova, a member of the Moscow Flower Growers club, warned about the dangers of chemical nitrogen fertilizers

Florist warned about the risks of nitrogen fertilizers

According to Zhashkova, chemical nitrogen fertilizers, which provide a spacious crop shortly, threaten deadly diseases. "Nitrogen accumulates in products. An excess amount of nitrogen leads increasing in cancer if we consume it in food. In addition, they degrade the soil," the country house expert…

Penn State Extension

Penn State Extension expands resources for growers at produce auctions

Penn State Extension is expanding a program that offers educational kiosks at produce auctions across the state. These kiosks provide growers with timely, relevant information on the disease and pest identification and management, invasive species, and food safety. Beth Gugino, professor of vegetable…

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New Impatiens varieties became a focus for breeders

People often hear the mantra 'start healthy, stay healthy.' Choosing plant species and varieties known to be resilient to certain pests and diseases could be one of the best ways to 'start healthy.' That's something that was brought home to those growing protected ornamentals a few years back with the…

Protecting pelargoniums:

Chrysal and Syngenta Flowers introduce Largo

Pelargoniums are sensitive to ethylene during transport and can respond by dropping their petals and yellowing their leaves. Unfortunately, this is unavoidable during shipping. A prolonged period of time in the dark can lead to leaf yellowing and petal drop.  To fight this, Chrysal and Syngenta Flowers have…

© Photoroller | Dreamstime.com

Michigan asks public to help prevent spread of invasive pests

Summer weather has finally made its appearance, and many Michiganders are stocking up on new plants for their garden or landscape. With people headed to their local greenhouse or nursery, the Michigan Department of Agriculture and Rural Development (MDARD) is asking the public to help be on the lookout…

Floriculture research alliance

Developing methods to determine heavy metal contamination in hemp

Harrison Meekins, an M.S in Environmental Horticulture, and Austin Erickson, a B.S in Chemistry, are researching heavy metal uptake and contamination in hemp. Heavy metals are heavily regulated by the EPA as a contaminant and pose a significant threat to hemp growers because it tends to accumulate heavy…

© Sandra Cunningham | Dreamstime.com

Peony viruses

Just like people, plants have a range of viral relationships and diseases. Plant viruses are ultra-small RNA or DNA-based entities, and they usually can survive only in their plant host and specific vectors. Vectors spread viruses between plants – mainly through insects (aphids, thrips, beetles) that feed on an infected plant,…

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Decision-making for disease control strategies in ornamental heather production

Many farmers hesitate to adopt new management strategies with actual or perceived risks and uncertainties. Especially in ornamental plant production, farmers often stick to current production strategies to avoid the risk of economically harmful plant losses, even though they may recognize the need to…

Kirsty O’Connor/PA

Jim McColl: RHS says word 'pests' to be banned as crowds swarm to Chelsea Flower Show

Greenfly, whitefly, slugs, snails, vine weevils, eelworms, and many others are no longer deemed to be 'pests'

According to recent news from the Royal Horticultural Society (RHS), the use of the word 'pest' is to be banned. In the short term, many will find this 'edict' hard to understand, let alone comply with. "Don't get me wrong, I wish we could adopt such an attitude at the drop of a sprayer, but that is very…


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